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Distribution data supplied by the Ocean Biogeographic Information System (OBIS). Can be free-floating in the water or attached to rocks, pilings and other hard surfaces. Royal Botanic Garden Edinburgh Herbarium (E). Development of microsatellite markers in the green algae. AlgaeBase. Netherlands Journal of Aquatic Ecology 28(1): 25-33. False northern thread (Pseudothrix borealis) is much narrower (~ 1 mm) than U. intestinalis (~ 5 mm) and typically only reaches about 10 cm in length. Reed, R.H. & Russell, G., 1978. Lubchenco, J., 1978. Many other intertidal species are often found amongst dense growths of Ulva in deep splash zone pools. Seaweed Resources in Europe: Uses and Potential. 1980. The species directory of the marine fauna and flora of the British Isles and surrounding seas. & Depledge, M.H., 1998. 1996). 1984. Furthermore, some marine forms of U. intestinalis are more difficult for grazers to handle and ingest than species with more frond structure (Watson and Norton 1985). Like other members of the genus, Ulva intestinalis is a summer annual, decaying and forming masses of bleached white fronds towards the end of the season. Marine Ecology Progress Series 218: 87-93. Reed, R.H., and G. Russell. AU - Olsson, Joakim. Botanica Marina, 27, 371-376. Carlton, and C.L. Swarmers can survive in motile form for around 5–8 days. Potential: Ulva intestinalis has caused serious negative impacts in marine and coastal areas outside of the Great Lakes region. gut weed, Conferva intestinalis, Enteromorpha intestinalis, Enteronia simplex, Fistularia intestinalis, Ilea intestinalis, Hydrosolen intestinalis, Scytosiphon intestinalis, Scytosiphon intestinalis var. Howson, C.M. It is being provided to meet the need for timely best science. Messyasz, B., and A. Rybak. Journal of Great Lakes Research 19(1): 1-54. 1984). The influence of UV-B radiation on the reproductive cells of the intertidal macroalga, Enteromorpha intestinalis. Impact of Enteromorpha intestinalis mats on near-bed currents and sediment dynamics: flume studies. Mats were between 5-15 cm thick, with a biomass of 97 tonnes in an area of 3.7 km2 in 1993. Leach, J.T. Acta Oecologica 20(4): 259-265. McFarlane), ERDA Symposium Series (Conf-750425, NTIS), Augusta, GA, pp. Fronds may be 10-30 cm or more in length and 6-18 mm in diameter, the tips of which are usually rounded. 2002). Worm, and U. Sommer. Ulva rigida is commonly found on intertidal rocks, in tidepools, and on reef flats. In these regions, U. intestinalis may form green tides and biofouling mats that cause cascading effects throughout the food web. BRERC species records recorded over 15 years ago. In Thermal Ecology II, (eds. Collins pocket guide. Seaweeds are traditionally used as human food, because they provide nutritional value and a specific taste. Simons, J. Ulva intestinalis The sea lettuces comprise the genus Ulva, a group of edible green algae that is widely distributed along the coasts of the world's oceans. Ulva intestinalis may become detached from the substratum, and buoyed up by gas, float to the surface where they continue to grow. 2004) and negatively impact their corresponding communities, as well disrupt feeding by wading birds (Raffaeli et al. Hayden, H.S., Blomster, J., Maggs, C.A., Silva, P.C., Stanhope, M.J. & Waaland, J.R., 2003. Oceanography and Marine Biology: An Annual Review 36: 97-125. Marine Pollution, 4th edition. 1993). Estuaries 10(2): 171-176. Occurance dataset: http://www.sewbrec.org.uk/ accessed via NBNAtlas.org on 2018-10-02. Salinity dependent accumulation of Zn, Co and Mn in Scytosiphon lomentaria (Lyngb.) Contributions in Marine Science 15: 205-285. Fewer, M. Kiirikki, A. Lehvo, C.A. Most U. intestinalis ecotypes, however, exhibit very broad salinity tolerance (Cohen and Fong 2004, Edwards et al. Regulations (pertaining to the Great Lakes region) There are no known regulations for this species. & Babb, M.S., 1968. Names and dates are hyperlinked to their relevant specimen records. Species within the genus Ulva are difficult to identify. 1993. Royal Botanic Garden Edinburgh, 2018. Growth form and environment in Enteromorpha. Estuarine and Coastal Marine Science, 8, 251-258. JNCC (Joint Nature Conservation Committee), 1999. Ulva intestinalis and Ulva compressa are two bloom-forming morphologically-cryptic species of green seaweeds widely accepted as cosmopolitan in distribution. 1976. Manx Biological Recording Partnership, 2018. Parchevskij & Rabinovich (1991) cultivated Ulva intestinalis (as Enteromorpha intestinalis) on horizontally and vertically suspended ropes in coastal Black Sea areas polluted with sewage and waste water effluents. Iverson), 682-690. Such mats of unattached Ulva intestinalis are most frequent in summer. & Fish, S., 1996. Applied Phycology: Vol. North East Scotland Biological Records Centre, 2017. Sea Lettuce (Ulva lactuca) – University of Rhode Island; Quick Facts. Publications Photo credit: “Macroalgae bloom“ by eutrophication&hypoxia, Emily Nauman from Flickr licensed under CC by 2.0. AU - Chuck, Christopher. Seaweeds have no known mechanism for visual perception. Mats of U. intestinalis in England also caused an order of magnitude decrease in abundance of the economically important bivalve Cerastoderma edule (Romano et al. ERIC NE Combined dataset to 2017. McArthur, D.M. Edwards, D.M., R.H. Reed, and W.D.P. The new recorded species of Enteromorpha in Baghdad area, Iraq. Salinity stress, nitrogen competition, and facilitation: what controls seasonal succession of two opportunistic green macroalgae? The role of sewage effluent in the accumulation of macroalgal mats on intertidal mudflats in two basins in southern England. British Phycological Journal 13(2): 149-153. Mass occurrence of unattached Enteromorpha intestinalis on the Finnish Baltic Sea coast. Cohen, R.A., and P. Fong. The effect of two commercial herbicides on the settlement, germination and growth of Enteromorpha. 78 °E) in Yancheng, Jiangsu, China, and named “D”. Cofnod – North Wales Environmental Information Service, 2018. South East Wales Biodiversity Records Centre, 2018. St Andrews BioBlitz 2014. Manuscript III Sofia Raikova, Joakim Olsson, Joshua J. Mayers, Göran M. Nylund, Eva Albers, and Christopher J. Chuck. Plants may be branched or unbranched. It thrives in brackish waters, particularly in waters with organic enrichment. Biological Reviews, 56, 99-151. By Ommee Benjama and Payap Masniyom. Hsp70 expression in Enteromorpha intestinalis (Chlorophyta) exposed to environmental stressors. 2001. 2001, Pringle 1986). Linnaeus was right all along: Ulva and Enteromorpha are not distinct genera. Aquatic Toxicology, 51, 277-291. Establishment of freshwater biota in an inland stream following reduction of salt input. London: British Museum (Natural History). 1998). (ed. Desmond, and J.B. Zedler. Finally, in conditions of nitrogen scarcity in estuaries and lagoons on the coast of southern California, U. intestinalis can out-compete Ulva expansa (Fong et al. The latter are generally not well adapted to low salinity values and extended periods of desiccation. A fluctuating salinity regime mitigates the negative effects of reduced salinity on the estuarine maroalga, Enteromorpha intestinalis (L.) link. Isle of Man wildlife records from 01/01/2000 to 13/02/2017. Enteromorpha intestinalis) (Linnaeus). The effects of some trace metals on marine phytoplankton. Physiological responses of a bloom-forming green macroalga to short-term change in salinity, nutrients, and light help explain its ecological success. National Trust, 2017. For instance, the occurrence of a summer mass of unattached Ulva intestinalis (as Enteromorpha intestinalis) was studied by Baeck et al. Sporophytes are often also capable of reproducing over longer time periods than gametophytes (Cordi et al. Accessed: 2020-12-23. Observe and draw the thallus morphology of Ulva intestinalis with the naked eye and under the dissecting scope. Maggs, and M.J. Stanhope. U. prolifera samples collected in June 2018 floated on the sea (36. Oxford: Carendon Press. intestinalis. Thallus completely tubular and elongate, increasing in width from base to mid thallus. In European coastal waters, epiphytic benthic diatoms prefer growing on monosiphonous forms of U. prolifera to colonizing broad and flattened forms of U. intestinalis (Holt 1980). R.F. & Stanhope, M.J., 1998. Marine Pollution Bulletin, 6, 189-192. Kitching, J.A. GLERL 4840 S. State Rd., Ann Arbor, MI 48108-9719 (734) 741-2235 Near the Detroit River in the Great Lakes drainage, there have been two forms recorded, namely. (2020). Journal of Phycology, 16, 617-619. Norfolk Biodiversity Information Service, 2017. Acta Oceanologica, 20, 259-265. 1986. [on-line] http://www.jncc.gov.uk/mermaid. Sequence divergence between E. intestinalis and other Enteromorpha species ranged from 9.2 to 16.6% and between E. intestinalis and Ulva species from 9.3 to 14.7% . 2000, Cummins et al. Hruby, T. & Norton, T.A., 1979. Boyer, J.S. Ulva intestinalis is amongst the first multicellular algae to appear on substrata that have been cleared following a disturbance, e.g. Intestinalis Chlorophyta in relation to environmental factors single thallus of Ulva and Enteromorpha are not distinct genera Committee,... 28 ( 1 ): 53-69, D. E. 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